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Filters: Tags: Calhoun County, Illinois (X)

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Exposure of Brussels formation showing thick beds of loess like silt interbedded with laminated clay. SE 1/4 NE 1/4 sec. 28, T. 13 S., R. 1 W. Calhoun County, Illinois. Circa 1928. Plate 13-A, in U.S.Geological Survey Professional paper 218. 1952.
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Specimen: Thinly laminated siltstone in Hannibal shale: NE 1/4 NE 1/4 sec. 1, T. 10 S, R. 3 W. Enlarged twice. Calhoun County, Illinois. Circa 1928. Plate 7-B, in U.S.Geological Survey Professional paper 218. 1952.
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To evaluate how bigheaded carps use a restored backwater habitat, their passages into and out of and residency within a backwater was monitored using acoustic telemetry. This dataset describes the results of this study and was used to compare activity of bigheaded carps between species, at a diel scale, among seasons, and how activity related of environmental conditions. Calculation of passages and residency are available in the thesis of Douglas Schultz (Southern Illinois University, 2006). http://fishdata.siu.edu/schultz.pdf
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Exposure of St. Peter sandstone along Mississippi River in Cap Au Gres, view northward from near Dogtown Landing in SW 1/4 sec. 29, T. 12 S., R. 2 W. Calhoun County, Illinois. Circa 1928. Plate 3-A, in U.S.Geological Survey Professional paper 218. 1952.
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Specimen: "Hamburg" oolite in Glen Park formation. SW 1/4 sec. 26, T. 9 S., R. 3 W., enlarged 1.5 times. Calhoun County, Illinois. Circa 1928. Plate 7-A, in U.S.Geological Survey Professional paper 218. 1952.


    map background search result map search result map Restoration versus invasive species: bigheaded carps’ use of a rehabilitated backwater: Data Restoration versus invasive species: bigheaded carps’ use of a rehabilitated backwater: Data